This bug affected my Ubuntu 18.04 LTS system the first time I booted after upgrading the kernel. But the second and third times I booted, it no longer affected my Ubuntu.
The computer is a Dell Precision M4800, and I run a rather basic system, of fully up to date after
sudo apt update
sudo apt full-upgrade
with only a few added program packages (the 'most intrusive' maybe Oracle VirtualBox).
This bug affected my Ubuntu 18.04 LTS system the first time I booted after upgrading the kernel. But the second and third times I booted, it no longer affected my Ubuntu.
The computer is a Dell Precision M4800, and I run a rather basic system, of fully up to date after
sudo apt update
sudo apt full-upgrade
with only a few added program packages (the 'most intrusive' maybe Oracle VirtualBox).